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Exam Review (Nicholas Delor) (Ch. 11 (What are the 5 different types/signs…
Exam Review (Nicholas Delor)
Ch. 11
What are chemical reactions?
One or more rectants changing into one or more products.
What are the 5 different types/signs of chemical reactions?
Single Replacement (A + BC --> AC + B)
Double Replacement (AB + CD --> CB + AD)
Decomposition (C --> A + B)
Combustion (C(x)H(x)+O(2) --> CO(2)+H2O)
Combination (A + B --> C
Ch. 6
Hund's Rule
P Orbital = 6 (2P - - -)
D Orbital = 10 (3D - - - - -)
S Orbital = 2 (1S -)
F Orbital = 14 (4F - - - - - - -)
Electron Configuration
Fluorine (9)
1S2 2S2 2P5
Aluminum (13)
1S1 2S2 2P6 3S2 3P6
Beryllium (4)
1S2 2S2
Argon (18)
1S2 2S2 2P6 3S2 3P1
Potassium (19)
1S2 2S2 2P6 3S2 3P6 4S1
Ch. 13
Describe the particles in a solid, liquid, and gas.
Liquid
Attached to one another, but moves past each other. No definitive shape.
Gas
Not attached, moves in a rapid, constant, and random pattern No definitive shape.
Solid
Attached to one another, but cannot move past each other. Keeps shape.
What are the three temperature scales? Which one is considered the one for science?
Celsius (C)
Kelvin (K, used for science)
Farenheit (F)
Ch. 9
What are 10 different prefixes used in naming binary molecular compounds?
Tetra- (4)
Penta- (5)
Tri- (3)
Hexa- (6)
Di- (2)
Hepta- (7)
Mono- (1)
Octa- (8)
Nona- (9)
Deca- (10)
Write the formulas of the following binary molecular compounds.
IF7
ClF3
PCl5
IO2
Ch. 8
What are polyatomic ions?
More than 1 element combined and having a net change (sulfate, SO4, Nitrate, NO3).
What is the VSEPR theory? What dictates the shape of the compound?
It is used to predict the arrangement of electron pairs with non-hydrogen atoms in molecules.
Ch. 10
What is Avogadro's Number (aka a mole?)
6.02 X 10(23)
What is the molar mass of C6H12O6?
180.156 g/mol
Ch. 7
Chemical Formulas
Na+ + O2- = NaO (Sodium Oxide)
Ca2+ + O2- = CaO (Calcium Oxide)
K+ + S2- = K2S (Potassium Sulfide)
Al3+ + N3- = AlN (Aluminum Nitride)
What are valence electrons?
Electrons in the highest energy level.